code: def __init__(self):
      self.axis = 1
      super(AccMetric, self).__init__(
          "acc", axis=self.axis, output_names=None, label_names=None
      )
      self.losses = []
      self.count = 0
  
file_path: insightface/recognition/arcface_mxnet/metric.py
imports: import numpy
  import mxnet
label_desc: Use image node_id 1 to create a new AccMetric object from inherited base classes: mx.metric with example: obj = AccMetric()